Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Firefox | Mozilla | * | 84.0 (excluding) |
Firefox_esr | Mozilla | * | 78.6.0 (excluding) |
Thunderbird | Mozilla | * | 78.6.0 (excluding) |